Year	Number
1996	40
1998	43.2835807800293
2000	30.8457717895508
2002	41.2935333251953
2003	38.3084564208984
2004	33.6538467407227
2005	28.8461532592773
2006	31.730770111084
2007	35.5769233703613
2008	34.1346168518066
2009	34.1232223510742
2010	34.5971565246582
2011	30.9859161376953
2012	31.9248828887939
2013	33.8028182983398
2014	33.4975357055664
2015	31.0344829559326
2016	32.019702911377
2017	34.4827575683594
2018	37.8640785217285
2019	39.1304359436035
2020	37.6811599731445
2021	42.0289840698242
2022	40.5797119140625